Preheat the oven to 400°F (200°C).
Cut off the stem and bottom tips of the squash so it sits flat.
Slice the squash in half from top to bottom and scoop out the seeds.
Cut into 1-inch wedges or roast the halves whole.
Place the squash on a parchment-lined baking sheet.
Brush with olive oil or butter and season with salt, pepper, and cinnamon (if using).
Sprinkle brown sugar or drizzle maple syrup for a touch of sweetness.
Roast for 25–35 minutes, flipping halfway, until tender and golden brown.
Serve warm as a side dish or enjoy it on its own.